package com.example.demo.command2;

import java.util.ArrayList;
import java.util.HashSet;

public class MyThread implements Runnable{
    @Override
    public void run() {
        int i = 10;
        do{
            System.out.println(i);
        }while (i-- > 0);

        new ArrayList<>(new HashSet<>(new ArrayList<>()));

    }
}
